Weather

UV Index Calculator

Estimate UV risk, time-to-burn by skin type, and SPF-adjusted protection time. Includes altitude and cloud adjustments plus a day table export.

UV Risk Level Time-to-Burn SPF Impact Exposure Table

UV Risk & Sun Exposure Time Estimator

Calculate UV Index category, estimate burn time, adjust for SPF, clouds, altitude, and export a daylight exposure table.

UV Index (UVI)

Cloud Cover

Altitude (meters)

Surface Reflection

Shade / Cover

Eye Protection

UV Index (UVI)

Skin Type (Fitzpatrick)

Sensitivity

Cloud Cover

Altitude (meters)

Surface Reflection

UV Index (UVI)

Skin Type (Fitzpatrick)

Sunscreen SPF

Application Quality

Water/Sweat

Shade / Cover

Peak UV Index (midday)

Start Hour

End Hour

Skin Type

SPF

Application Quality

Export